Brazil NCM · 8-digit subitem

NCM 2930.90.34 – 2-Hydroxy-4-(methylthio)butanoic acid and Ca salt

NCM 2930.90.34 (also written 29309034) is Brazil's code for 2-Hydroxy-4-(methylthio)butanoic acid and Ca salt. Its first 6 digits are HS code 2930.90.

Official description of NCM 2930.90.34

PortuguêsOfficial
Ácido 2-hidroxi-4-(metiltio)butanoico e seu sal cálcico
EnglishUnofficial translation

2-Hydroxy-4-(methylthio)butanoic acid and its calcium salt

Nomenclatura Comum do Mercosul (Siscomex). Updated Oct 2026 · In force since Apr 2022 (Res Gecex 272/2021).

How to read NCM 2930.90.34

29Chapter 30Heading 90Subheading

HS code 2930.90
Same in every country

3Item 4Subitem

Added by Mercosur
Brazil, Argentina, Paraguay, Uruguay

The first 6 digits are the international HS code, so their meaning is the same in every country; Brazil publishes the text in Portuguese. Digits 7 and 8 are Brazil's own split of that HS code. The full 8-digit code is used on import declarations (DUIMP), invoices (NF-e) and tax filings.

Full classification path

  1. Chapter 29 Organic chemicals Produtos químicos orgânicos.
  2. Heading 29.30 Organo-sulphur compounds Tiocompostos orgânicos.
  3. Subheading 2930.90 Organo-sulphur compounds; n.e.c. in heading no. 2930 Outros
  4. Item 2930.90.3 Thioethers, thioesters and their derivatives, other than the products of item 2930.90.8; salts thereof Tioéteres, tioésteres e seus derivados, exceto os produtos do item 2930.90.8; sais destes produtos
  5. Subitem 2930.90.34 2-Hydroxy-4-(methylthio)butanoic acid and its calcium salt Ácido 2-hidroxi-4-(metiltio)butanoico e seu sal cálcico

Other NCM codes under HS 2930.90

2930.90.11 Thioglycolic acid and its saltsÁcido tioglicólico e seus sais 2930.90.12 CysteineCisteína 2930.90.13 N,N-Dialkyl(C1-C3)-2-aminoethanethiolsN,N-Dialquil-2-aminoetanotiol, com grupos alquila de C1 a C3, e seus sais protonados 2930.90.19 Other thiols and their derivativesOutros 2930.90.21 ThioureaTioureia 2930.90.22 Thiophanate-methylTiofanato-Metila 2930.90.23 4-Methyl-3-thiosemicarbazide4-Metil-3-tiosemicarbazida 2930.90.29 Other thioamides and their derivativesOutros 2930.90.31 2-(Ethylthio)ethanol, 98% or more2-(Etiltio)etanol, com uma concentração igual ou superior a 98 %, em peso 2930.90.32 3-(Methylthio)propanal3-(Metiltio)propanal 2930.90.33 S-Ethyl chlorothioformateClorotioformiato de S-etila 2930.90.35 MethomylMetomil 2930.90.36 CarbocisteineCarbocisteína 2930.90.37 Specified 4-sulphatoethylsulphonyl methoxyanilines4-Sulfatoetilsulfonil-2,5-dimetoxianilina; 4-sulfatoetilsulfonil-2-metoxi-5-metilanilina; 4-sulfatoetilsulfonil-2-metoxianilina 2930.90.39 Other thioethers, thioesters and derivativesOutros 2930.90.41 Amiton and its alkylated or protonated saltsFosforotioato de O,O-dietila e de S-[2-(dietilamino)etila] e seus sais alquilados ou protonados 2930.90.42 VamidothionFosforotioato de O,O-dimetila e de S-[2-(1-metilcarbamoiletiltio)-etila)] (vamidotion) 2930.90.43 ProfenofosFosforotioato de O-(4-bromo-2-clorofenila) O-etila e de S-propila (profenofós) 2930.90.49 Other phosphorothioates and derivativesOutros 2930.90.51 Phorate (ISO); terbufos (ISO)Forato (ISO); terbufós (ISO) 2930.90.52 DisulfotonDissulfoton 2930.90.53 EthionEtion 2930.90.54 DimethoateDimetoato 2930.90.57 ThiometonFosforoditioato de O,O-dimetila e de S-[2-(etiltio)etila] (tiometon) 2930.90.59 Other phosphorodithioates and derivativesOutros 2930.90.61 AcephateAcefato 2930.90.69 Other phosphoramidothioates and derivativesOutros 2930.90.71 TiaprideTiaprida 2930.90.72 BicalutamideBicalutamida 2930.90.79 Other sulphonesOutras 2930.90.81 2-Chloroethyl chloromethyl sulphideSulfeto de 2-cloroetila e de clorometila 2930.90.82 Bis(2-chloroethyl) sulphide (mustard gas)Sulfeto de bis(2-cloroetila) 2930.90.83 Bis(2-chloroethylthio)methaneBis(2-cloroetiltio)metano 2930.90.84 1,2-Bis(2-chloroethylthio)ethane1,2-Bis(2-cloroetiltio)etano 2930.90.85 1,3-Bis(2-chloroethylthio)-n-propane1,3-Bis(2-cloroetiltio)-n-propano 2930.90.86 1,4-Bis(2-chloroethylthio)-n-butane1,4-Bis(2-cloroetiltio)-n-butano 2930.90.87 1,5-Bis(2-chloroethylthio)-n-pentane1,5-Bis(2-cloroetiltio)-n-pentano 2930.90.88 Bis(2-chloroethylthiomethyl) etherÓxido de bis(2-cloroetiltiometila) 2930.90.89 Bis(2-chloroethylthioethyl) etherÓxido de bis(2-cloroetiltioetila) 2930.90.91 CaptanCaptan 2930.90.93 Methylene bis(thiocyanate)Metileno-bis-tiocianato 2930.90.94 DimethylthiophosphoramideDimetiltiofosforamida 2930.90.95 FonofosEtilditiofosfonato de O-etila e de S-fenila (fonofós) 2930.90.96 S-Dialkyl(C1-C3)aminoethyl alkylphosphonothioatesHidrogênio alquil(de C1 a C3)fosfonotioatos de [S-2-(dialquil(de C1 a C3)amino)etila], seus ésteres de O-alquila (de até C10, incluindo os cicloalquila); sais alquilados ou protonados destes produtos 2930.90.97 Other P-(C1-C3)alkyl compounds, no other P-C bondOutros compostos que contenham um átomo de fósforo ligado a um grupo alquila (de C1 a C3) mas sem outros átomos de carbono 2930.90.98 Dithiocarbonates (xanthates)Ditiocarbonatos (xantatos e xantogenatos) 2930.90.99 Other organo-sulphur compoundsOutros

Questions about NCM 2930.90.34

What is NCM 2930.90.34?

NCM 2930.90.34 (29309034) is the Brazilian (Mercosur) code for 2-Hydroxy-4-(methylthio)butanoic acid and Ca salt. Its official Portuguese description is “Ácido 2-hidroxi-4-(metiltio)butanoico e seu sal cálcico”.

What is the HS code for NCM 2930.90.34?

HS 2930.90 (Organo-sulphur compounds; n.e.c. in heading no. 2930). The first 6 digits of an NCM code are its international HS code; the last 2 digits are Brazil's own split.

Is an NCM code the same as an HS code?

The first 6 digits are the same in every country. NCM adds an item digit (7th) and a subitem digit (8th). A code ending in 00 means Brazil does not split that HS code further.

Which countries use NCM 2930.90.34?

All Mercosur members use the same NCM codes: Argentina, Brazil, Paraguay and Uruguay.

Source: Siscomex Classif NCM table, updated Oct 2026 (Resolução Gecex nº 926/2026). The Portuguese text is the official one; the English is our translation.